Power operated tool



Sept. 12, 1933. E. G. GARTIN POWER OPERATED TOOL Filed OCT.. 12. 193].

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121 ,4- IMA/MHH HTT'X Patented Sept. 12, i933 POWER OPERATED TOOL Elmer G. Gartin, Claremont, N. H., assigner to Sullivan Machinery Company, a corporation of Massachusetts Application October 12,

7 Claims.

This invention relates to power operated tools and more particularly, but not exclusively, to improvements in supporting means for power operated tools of the impact type.

An object of this invention is to provide an improved tool supporting means whereby the tool may be held by an operator in an improved manner. Another object is to provide an improved supporting means for a power operated tool whereby the tool may be supported and manipulated with facility. Another object is to provide an improved supporting means for a power operating tool ci the impact type and more particularly improved supporting means for a demolishing tool whereby the tool may be supported and moved toward the work in an improved manner. These and other objects and advantages of this invention will, however, hereinafter more fully appear.

In the accompanied drawing there is shown for purposes of illustration one form which the invention may assume in practice.

In this drawing:

Fig. 1 is a side elevational view of the illustrative embodiment of the impact tool and the improved supporting means therefor.

Fig. 2 is an end elevational view of the tool and tool supporting means shown in Fig. l.

In this illustrative embodiment of the invention there is shown a power operated tool generally designated l having improved supporting means generally designated 2. The tool 1 is herein of the pressure uid operated, impact type having a usual hammer cylinder 3 in which there is reciprocably mounted in a usual manner, an impact element which is adapted to actuate percussively a Working implement herein a pick 4. This pick is supported in the usual manner within the forward end of the hammer cylinder and held therein by a usual retainer device 5. The particular construction of the impact tool is without pertinence since the improved supporting means may be associated withrpower operated tools of various designs and therefore detailed description and illustration of the internal structure thereof is unnecessary.

Now referring to the improved supporting means for the impact tool 1, it will be noted that secured to the hammer cylinder as by a suitable threaded connection within a lateral boss 6 integral with the cylinder is an elongated tubular support '7 herein arranged at substantially right angles to the longitudinal axis oi the inpact tool and of such length to obtain substantial leverage. The tubular support 7 is herein in the form of a pipe having lattached at its upper end as by a usual elbow pipe connection 8, a laterally projecting handle 9 herein arranged parallel with the longi- 1931. Serial No. 568,494

angle with respect to the handle 9 as shown in Fig. 2. Mounted on the handle 9 is a usual throttle controlling valve sleeve 13 which is arranged to control the flow of motive through a supply connection 14. and the tubular support 7 to the hammer motor of the impact tool, all in a well known manner.

The improved impact tool is particularly adapted for demolition work and especially for the demolition of an old wall of brick, concrete,

or other material wherein it is necessary for the operator to support and manipulate the impact tool relative to the work while standing on the top of the wall or a scaffold suspended from the wall. With the improved handle arrangement disclosed herein, it is possible for the operator to support the tool under such conditions and at the same time obtain a certain amount of leverage to force the pick laterally toward the work. During normal operation of the tool, the handle 9 is grasped in one hand of the operator while the grip 12 of the handle 11 is grasped in the cperators other hand and the impact tool is held suspended by these handles while the handle 11 is also utilized to move the tool toward the work. The flow of motive fluid to the impact motor of the tool is controllable by the valve operating sleeve 13, the latter forming the grip portion of the handle 9 thereby enabling the operator to control the hammer motor without removing his hand from this handle.

As a result or this invention it will be noted that by the improved handle arrangement disclosed herein, the certain attendant dangers due to the necessity of the operator exerting some effort to either hold or move the tool, which effort may tend to unbalance him whereupon he might be precipitated from the top of the wall or scaffolding and hence possibly subjected to severe injury, have been greatly diminished, it being possible for the operator to stand upon the top of the wall to be broken down and support and manipulate the tool without any tendency of being thrown outwardly from the wall. These and other uses and advantages of the improved tool supporting means will be clearly apparent to those skilled in the art.

While there is in this application specically described one form which the invention may assume in practice, lit will be understood that this Cir form of the same is shown for purposes of illustration and that the invention may be modified and embodied in various other forms'without departing from its spirit or the scope of the appended claims.

What I claim as new and desire to secure by Letters Patent is: f f

1. In combination, a fluid actuated tool actuating motor, and supporting means for said motor including an elongated supporting member secured to and extending at substantially right angles to the longitudinal axis of the motor, and a plurality oi supporting handles carried at the upper end of said supporting member remote from the tool and arranged in rigid space relation and extending inwardly and outwardly with respect to said supporting member, one of said handles disposed angularly relative to the other, said handles so arranged as to enable the motor to be swung in vertical planes thereby to transmit an axial feeding force to the motor, and the weight of the motor being wholly supported by' the operator in suspension by said handles during operation of the motor.

2. In combination, a fluid actuated tool actuating motor, and supporting means for said motor including anrelongated supporting member secured to and extending at substantially right angles to the longitudinal axis of said motor, and a plurality of supporting handles carried at the upper end of said supporting member remote from said motor and arranged in rigid space relation and extending inwardly and outwardly with respect to said supporting member, one of said handles being arranged with its axis at substantially an obtuse angle with respect to theraxis of the other, said handles so arranged as to enable swinging of the motor in vertical planes to transmit an axial feeding force to the motor, and the weight of the tool being wholly supported by the operator in suspension by said handles during operation of the motor.

3. In combination, a iiuid actuated tool actuating motor, and supporting means therefor including an elongated supporting member secured to and arranged at substantially right angles to the longitudinal axis of saidl motor, and a plurality of supporting handles carried at the upper end of .said supporting member remote from the motor, said handles being relatively angularlyldisposed with the axis of one lying in a common plane including the axes of the supporting member and the motor, one of said handles being substantially in advance of the other, said handles so arranged as to enable swinging of the motor in vertical planes to transmit an axial feeding force to the motor, and the weight of the tool being wholly supported by the operator in suspension by said handles during the operation of the motor.

4. In combination, a fluid actuated tool actuating motor, and supporting means for said motor including an elongated supporting member secured to and arranged at substantially right angles to the longitudinal axis of the motor, and a plurality of supporting handles carried at the upper end of said Supporting member remote from said motor, said handles being relatively angularly disposed with the axis of one lying` in a common plane including the axes of the supporting member and the motor while the other handle is arranged with its axis at an obtuse angle with respect to the axis of said other handle, said handles extending inwardly and outwardly with respect to said supporting member and one of said'handles being sub-v stantially in advance of the other in planes parallel to the axis of the tool, said handles so arranged as to enable swinging of the motor in vertical planes to transmit an axial feeding force to the motor, and the weight of the tool being wholly supported in suspension by the operator by said handles during operation of the motor.

5. In combination, a fluid actuated tool actuating motor, and supporting means therefor including an elongated supporting member secured to and extending at substantially right angles to the longitudinal axis of the motor, a supporting handle secured to the upper end of said supporting member remote from the motor and arranged with its axis parallel to lthe motor axis, and a supplemental supporting handle rigidly attached to the upper end of said supporting member adjacent said other handle and arranged with its axis angularly disposed with respect to said other handle, one of said handles being substantially in advance of the other in planes parallel to the axis of the motor whereby the motor may be swung in vertical planes to transmit an vaxial feeding force to the motor, and the weight of the motor being wholly supported in suspension by the operator by said handles during operation of the motor.

6. In combination, a fluid actuated tool actuating motor, and supporting means for said motor including an elongated supporting member secured to and extending at substantially right angles to the longitudinal axis of said motor, a supporting handle secured to the upper end of said supporting member and arranged with'its axis parallel to the motor axis, and a supplemental supporting handle attached to the upper end of said supporting member adjacent the other handle and arranged with its axis angularly disposed with respect to the other handle, one of said handles extending inwardly and the other outwardly with respect to said supporting member and one of said handles being substantially in advance of the other in planes parallel to the axis of the motor whereby the motor may be swung in vertical planes to transmit an axial feeding force to the motor,

the weight of the motor being wholly supported in suspension by the operator by said handles during operation of the motor.

7. In combination, a fluid actuated tool actuating motor, and'supporting means therefor ini parallel to the motor axis, and a supplemental supporting handle attached to the upper end of said supporting member adjacent said other handle and arranged with its anglevwith 'respect to the axis of said other handle, one handle extending inwardly and the other outwardly with respect to said supporting membensaid handles being so arranged as to enable the operator to swing the motor in ver- ,.1

ticalV planes to transmit to the motor an axial feeding force, and said motor being supported in suspension by said handles during operation of Vthe motor.

' ELMER G. GARTIN.

at an obtuse loo 

